package com.design.yjx.command.common;

/**
 * @author yuanjianxin
 * @date 2017/8/21 14:22
 * 灯泡对象
 */
public class Light {

    public void on(){
        System.out.println("开灯");
    }

    public void off() {
        System.out.println("关灯");
    }
}
